Steam-pressure cooker



l pr. 24, 1923 UNITED STATES f i neuesten conan.

Applicatienl tied `august; tl, lett?. derlei We. tilllate.

To all whom `it may concern/tlfV Be it kno vn that l, HENRY A. Porrnn'r, '7a citizen of the United States otAinerica residing at Milwaukee, in theeounty olf ll/lill waukee and State of Wisconsin, have invented certain new and useful improvements in Steam-Pressure Cookers, of which the iollowing is a specification.`

This invention relates to certain new and lll useful improvements in steam pressure cool:-

ers and has particular reference to a coolring utensil especially designed loihousehold use wherein different fruits or vegetables may be simultaneously coolred within M a receptacle by steam pressure conned therein.

'lhe primary object of the invention resides in the provision of a steam pressure cooker formed of upper and lower separable 2@ sections having connecting means therebetween to render the cooker air and steam tight, a steam pressure gage being associated with the upper section while a pet cock and safety valve carried by said upper @il section are provided lor controlling the pressure of steam within the coolrer.

rlhe invention further provides in a steam cooker of the type above set lorth, the provision ol connecting means between the upper and lower sections ol? the cooker in the form oi handles carried by one of the secA tions having shoulders adapted to engage lugs carried by the other section to eliecl a separating movement of the two sections when desired and also constituting lifting handles for the section carrying the same rlhe handles are so constructed as to coop erate `with the sections carrying the saine to limit he movement of said handles toward said cooker section to maintain the gripping portions of saidhandles at all times spaced 'lirom the cooker section.

A still further object of the invention is to provide a steam pressure cooker formed of two separable sections with the main body portion of the cooker embodied in the upper section in the forni 0i a dome-shaped cover, a ground joint being provided between the two sections while cooperating lugs and Ml' fastening screws retain the sections in air and-steam tight relation,

With the above general objects in view .and others that-will appear as the nature of the invention is betterunderstood, the saine consists ol the novel lorm, combination and arrangement of parts hereinalter more lully described, shown in the accompanying drawing and claimed.

ln the drawing, wherein lilre reference characters designate corresponding parts throughout the several views,

lfigure 1 is a vertical central sectional view ol a steam pressure cool-:er constructed in accordance with the present invention showing the position assumed by the handles when the two sections ol' the cooker are assembled, and further showing the major portion or the cooker embodied in one ol" the sectionscarrying a steam pressure. gage, pet coclr and salety valve,

Figui-e 2 is a top plan view oil the device showing the side handles carried'by the upper sections and the clampin lugs and adj usting screws lor retaining t e sections asseinbled,

Figure 3 is a detail sectional view showing the position assumed by the handles when the sections are to be se arated, and Figure ll is a detail sectiona view showing the tightening or clamping screw ller retaining the sections together.

Referring more in detail to the accompanying drawing, there is illustrated a steam pressure cooker formed ol upper and lower sections 1 and El detachably connected together by an air and steam tight joint, the cool-rer being preferably constructed o'l heavy plate aluminum or similar material. The lowerv section 2 is of substantial pan-sha e embodying a dat bottom wall 3 and a' re atively short perpendicular side wall l having an inner bevelled ground edge 5 shown more clearly in l*1 lgs. 3 and el. "lhe upper section l ol the coolrer embodies the major portion oi the body and includes a side wall 6 having a domeehaped cover l', the lower edge oi the side wall b being ol increased cross sectional area as shown in liligs. l and 3 to provide an annular shoulder t having the lower and outer edgethereol beveled and round as at 9 lor engagement with the beve ed edge 5 oli the lower section.

l Thel connecting and loclring .means lor the two sections l' and 2 includes screw bolts lll having heads ll carried by one end thereol' pivotally mounted as at l2 upon lugs i3 car ried by the lower sections t, the upper dll lllli dll lid

dll

lll@

lith

threaded ends ol:I the bolts lll passing bepositely-disposed and each comprising 'a U- shaped handle frame embodying a gripping portion 16 carrying side arms 17 are pivotally mounted as at 18 upon outwardly directed lugs 18a carried by the shoulder 8 of the upper section. The side legs A17 of thehandles carry lateral projections 19 having inclined terminal faces'lQa adapted for' engagement with the shoulder 8 of the upper sectionas shown in Fig. 3 for limit1ng the movement of the ripping portion 16 of the,v handles toward te side walls 6 of the upper section :to eliminate the hands of the operator coming into Contact with the heated upper' section. AEach side leg 17 carries a terminal cam extension 20'which is adapted to engage a lug 21' carried by the lower sections 2 for purposes of elevating or separating the two sections to the position shown in Fig. "3 upon inward swinging movement of said handles. I

Food placedA within the device being cooked by steam pressure, a steam pressure gage`22 is carried by .the upper wall 7 of the upper section 1, said Wall also carrying a et cock 23 and a safety valve 24.

rom the above detail description of the device, it is believed that the construction and operation thereof will at once be apparent, it being understood` that a rack frame may be positioned within the cooker for the purpose of supporting separate pans or trays containing different foods, suoli as vegetables, meats and fruits, water being placed in the lower section 2 at a level below the upper edge of the sidewall 4 with the cover section 1 placed thereon. When the cover section 1 is placed upon the lower sec tion 2, the handles 16 normally occupy the lposition shown in Fig. 3, and upon swinging said handles outwardly. the cam surfaces or lugs 20 carried by the side legs 16 of the handles are disengaged from the lugs 21 carried by the lower` section to permit intimate engagement between the ground beveled surfaces or edges 5 and 9 formed on the two cooker sections, the clamping and tightening screw bolts`10 then moved into engagement with the bifurcated lugs 14 and so retained by the thumb nuts 15 rendering the cooker air and steam tight. The safety valve 24 associated with the cover of the upper section may be initially set to open upon reaching a predetermined steam pressure within the cooker, said pressure being registered upon the gage 22 while the pet cock 23 is opened when a cooking operation has been completed to permit the immediate escape of steam from the cooker and also the ,instant removal of the cover or upper sec- I"tion 1.

Should the steam pressure within the cooker cause a binding engagement between the two sections 1 and 2, inward swinging movement of the handles 16 dur- ,-understood, of course, that the screw bolts y10 were released prior to the lifting operation. By the provision of a cooker of the ,type disclosed in this application, there is noted aeconsiderable saving in time, labor and fuel used inv cooking articles of food and liability of burning or scorching the same during the cooking operation is entirely eliminated. It is possible to cook three or more entirely different kinds of food at the saine time without the flavors thereof minglinfr or blending. The device may also be em oyed in different forms of Cookin suc as canning fruit and vegetables as we l as preparing the usual daily meals. By providing the major body portion of the device in the upper section or cover thereof, the user thereof is assured that too much water will not initially be placed in the lower section for overflowing' into the lower pan placed therein.

While there is herein shown and described the preferred embodiment 0f the present invention it is nevertheless to be understood that minor changes may be made therein without departing from the spirit and scope of the invention as claimed.

What I claim is 1. In a steam pressure cooker embodying a receptacle formed of two separable sections adapted to be held together, combined lifting handles and separating means carried by the upper section and cooperating with the lower section, said lifting handles comprising U-sha ed handle frames having the free ends of tlie side legs pivoted to the upper section, can-lug extensions carried by the side legs, and lugs carried by the lower section adapted to be engaged. by said camlugs for separating the cooker sections.

2. In a steam pressure cooker embodying a receptacle formed of two separable Sections adapted to be held together, combined lifting handles and separating means carried by the upper section and cooperating with the lower section, said lifting handles comprising .U-shaped handle frames having the free ends of the side legs pivoted to the upper section, cam-lug extensions carried by the side legs, lugs carried by the lower section adapted to be engaged by said cam-lugs for separating the cooker sections, and lateral extensions carried' by said handle legs adapted to Contact the outer lll lll

retdeee mi eide Weil et the n per eeetion to iimit neovenient of the tien ie trames toward the upper section..

3. tn e steeln pressure cooker embodying;r e reeeptecle formed of two separable Sections edepted to be held together, combined lifting handles end separating ineens carried by the upper Section end cooperating; with the tower section, each of seid lifting" henture.

HENRY A. PUPPERT. 

